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2,586 km · Domestic

George Bush Intercontinental (IAH) – Sacramento (SMF)

In July 2026, 122 flights operated between George Bush Intercontinental and Sacramento (both directions), and 82.8% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January95106▲ 11.6%
February100102▲ 2.0%
March1081080.0%
April1121120.0%
May118124▲ 5.1%
June118120▲ 1.7%
July1221220.0%
August120––
September116––
October110–in progress
November120––
December91––
Year to date (Jan–Jul)773794▲ 2.7%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January78.9%87.7%▲ 11.2%
February89.0%93.1%▲ 4.6%
March81.5%81.5%0.0%
April91.1%84.8%▼ 6.9%
May86.4%82.3%▼ 4.7%
June82.2%73.3%▼ 10.8%
July82.8%82.8%0.0%
August80.0%––
September89.7%––
October83.6%–in progress
November86.7%––
December80.2%––
Year-to-date average (Jan–Jul)84.6%83.6%▼ 1.1%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January20▼ 100.0%
February00–
March02–
April00–
May00–
June20▼ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)42▼ 50.0%

By direction

IAH → SMF

Scheduled flights
1,193
Flights operated
1,189
Cancelled
4 · 0.3%
On-time departures
76.9%

SMF → IAH

Scheduled flights
1,193
Flights operated
1,189
Cancelled
4 · 0.3%
On-time departures
90.8%

IAH → SMF and SMF → IAH counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 2,386 100.0% 83.9% 8

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay05:00–06:00-0.6min · 589 recorded · 587 measured
Gap to highest-delay hour20.7min05:00 ↔ 20:00
Recorded flights2,386IAH–SMF

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 94.0% · 589 recorded · 587 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 60 recorded · 60 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 87.2% · 306 recorded · 305 measured · Source: the US BTS 10:00 · 80.6% · 232 recorded · 232 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 169 recorded · 169 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · 84.2% · 375 recorded · 373 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 172 recorded · 171 measured · Source: the US BTS 20:00 · 72.1% · 482 recorded · 480 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · -0.6 min · 589 recorded · 587 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 60 recorded · 60 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 5.7 min · 306 recorded · 305 measured · Source: the US BTS 10:00 · 9.5 min · 232 recorded · 232 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 169 recorded · 169 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · 6.3 min · 375 recorded · 373 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 172 recorded · 171 measured · Source: the US BTS 20:00 · 20.2 min · 482 recorded · 480 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 589 · 589 recorded · 587 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · 60 · 60 recorded · 60 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 306 · 306 recorded · 305 measured · Source: the US BTS 10:00 · 232 · 232 recorded · 232 measured · Source: the US BTS 11:00 · 169 · 169 recorded · 169 measured · Source: the US BTS 12:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 13:00 · 375 · 375 recorded · 373 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 19:00 · 172 · 172 recorded · 171 measured · Source: the US BTS 20:00 · 482 · 482 recorded · 480 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0094.0%-0.6 min587589
06:00No observations———
07:00Fewer than 200 measured departures—6060
08:00No observations———
09:0087.2%5.7 min305306
10:0080.6%9.5 min232232
11:00Fewer than 200 measured departures—169169
12:00No observations———
13:0084.2%6.3 min373375
14:00No observations———
15:00No observations———
16:00No observations———
17:00No observations———
18:00Fewer than 200 measured departures—11
19:00Fewer than 200 measured departures—171172
20:0072.1%20.2 min480482
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 82.7% · 364 recorded · 364 measured · Source: the US BTS Tuesday · 84.8% · 352 recorded · 349 measured · Source: the US BTS Wednesday · 84.9% · 366 recorded · 365 measured · Source: the US BTS Thursday · 83.3% · 362 recorded · 360 measured · Source: the US BTS Friday · 83.7% · 362 recorded · 362 measured · Source: the US BTS Saturday · 82.5% · 258 recorded · 257 measured · Source: the US BTS Sunday · 84.7% · 322 recorded · 321 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 8.7 min · 364 recorded · 364 measured · Source: the US BTS Tuesday · 6.4 min · 352 recorded · 349 measured · Source: the US BTS Wednesday · 7.3 min · 366 recorded · 365 measured · Source: the US BTS Thursday · 11.4 min · 362 recorded · 360 measured · Source: the US BTS Friday · 6.9 min · 362 recorded · 362 measured · Source: the US BTS Saturday · 9.1 min · 258 recorded · 257 measured · Source: the US BTS Sunday · 7.8 min · 322 recorded · 321 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 364 · 364 recorded · 364 measured · Source: the US BTS Tuesday · 352 · 352 recorded · 349 measured · Source: the US BTS Wednesday · 366 · 366 recorded · 365 measured · Source: the US BTS Thursday · 362 · 362 recorded · 360 measured · Source: the US BTS Friday · 362 · 362 recorded · 362 measured · Source: the US BTS Saturday · 258 · 258 recorded · 257 measured · Source: the US BTS Sunday · 322 · 322 recorded · 321 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday82.7%8.7 min364364
Tuesday84.8%6.4 min349352
Wednesday84.9%7.3 min365366
Thursday83.3%11.4 min360362
Friday83.7%6.9 min362362
Saturday82.5%9.1 min257258
Sunday84.7%7.8 min321322

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · 83.6% · 203 recorded · 201 measured · Source: the US BTS Feb · 91.1% · 202 recorded · 202 measured · Source: the US BTS Mar · 81.5% · 218 recorded · 216 measured · Source: the US BTS Apr · 88.0% · 224 recorded · 224 measured · Source: the US BTS May · 84.3% · 242 recorded · 242 measured · Source: the US BTS Jun · 77.7% · 240 recorded · 238 measured · Source: the US BTS Jul · 82.8% · 244 recorded · 244 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 120 recorded · 120 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 116 recorded · 116 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 178 recorded · 178 measured · Source: the US BTS Nov · 85.5% · 220 recorded · 220 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 179 recorded · 177 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 10.0 min · 203 recorded · 201 measured · Source: the US BTS Feb · 1.4 min · 202 recorded · 202 measured · Source: the US BTS Mar · 6.9 min · 218 recorded · 216 measured · Source: the US BTS Apr · 3.6 min · 224 recorded · 224 measured · Source: the US BTS May · 7.4 min · 242 recorded · 242 measured · Source: the US BTS Jun · 14.7 min · 240 recorded · 238 measured · Source: the US BTS Jul · 8.9 min · 244 recorded · 244 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 120 recorded · 120 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 116 recorded · 116 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 178 recorded · 178 measured · Source: the US BTS Nov · 6.4 min · 220 recorded · 220 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 179 recorded · 177 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 203 · 203 recorded · 201 measured · Source: the US BTS Feb · 202 · 202 recorded · 202 measured · Source: the US BTS Mar · 218 · 218 recorded · 216 measured · Source: the US BTS Apr · 224 · 224 recorded · 224 measured · Source: the US BTS May · 242 · 242 recorded · 242 measured · Source: the US BTS Jun · 240 · 240 recorded · 238 measured · Source: the US BTS Jul · 244 · 244 recorded · 244 measured · Source: the US BTS Aug · 120 · 120 recorded · 120 measured · Source: the US BTS Sep · 116 · 116 recorded · 116 measured · Source: the US BTS Oct · 178 · 178 recorded · 178 measured · Source: the US BTS Nov · 220 · 220 recorded · 220 measured · Source: the US BTS Dec · 179 · 179 recorded · 177 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan83.6%10.0 min201203
Feb91.1%1.4 min202202
Mar81.5%6.9 min216218
Apr88.0%3.6 min224224
May84.3%7.4 min242242
Jun77.7%14.7 min238240
Jul82.8%8.9 min244244
AugFewer than 200 measured departures—120120
SepFewer than 200 measured departures—116116
OctFewer than 200 measured departures—178178
Nov85.5%6.4 min220220
DecFewer than 200 measured departures—177179

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 83.6% 1,994
  • Delayed >15 min 16.1% 384
  • Cancelled 0.3% 8
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

16
16 of 16
Flight numbersBy direction DeparturesOn time
UA2274 IAH → SMF 299 86.2%
UA1501 SMF → IAH 253 93.7%
UA1949 SMF → IAH 240 87.5%
UA1148 IAH → SMF 225 73.7%
UA1216 SMF → IAH 163 87.7%
UA1326 IAH → SMF 140 63.6%
UA1540 SMF → IAH 140 97.1%
UA2863 SMF → IAH 119 93.3%
UA1780 SMF → IAH 76 81.3%
UA1710 IAH → SMF 37 86.1%
UA2773 IAH → SMF 37 86.5%
UA1478 SMF → IAH 36 100.0%
UA788 IAH → SMF 36 80.6%
UA1545 IAH → SMF 35 51.4%
UA2749 IAH → SMF 35 71.4%
UA2230 IAH → SMF 32 90.6%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 122 +0.0% 0 82.8%
June 2026 120 +1.7% 0 73.3%
May 2026 124 +5.1% 0 82.3%
April 2026 112 +0.0% 0 84.8%
March 2026 108 +0.0% 2 81.5%
February 2026 102 +2.0% 0 93.1%
January 2026 106 +11.6% 0 87.7%
December 2025 91 +5.8% 0 80.2%
November 2025 120 +20.0% 0 86.7%
October 2025 110 +61.8% 0 83.6%
September 2025 116 0 89.7%
August 2025 120 0 80.0%
July 2025 122 0 82.8%
June 2025 118 2 82.2%
May 2025 118 0 86.4%
April 2025 112 0 91.1%
March 2025 108 0 81.5%
February 2025 100 0 89.0%
January 2025 95 2 78.9%
December 2024 86 2 77.9%
November 2024 100 0 84.0%
October 2024 68 0 85.3%

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